Last February ETH prize was around 1500 $ whish is all the time high and NEO prize is about 161 $ so its basic mat to see that NEO has dropped more then ETH. On the other hand now total supply of ETH is 103,694,581 whereas NEO total supply is 65,000,000. ETH is more popular and more developed coin when we compare NEO. But is must be your decision to find the best solution for yourself. I keep both of them.
Note: Do not forget that you will able to harvest 4 GAS in one year if you hold 20 NEO.